Feed for printing-machines.



No. 828,281. EATENTED AUG. 7, 1906.

W. EULLAED. A EEED E08 PRINTING MACHINES.

APPLICATION FILED JULY 14, 1903.

2 SHEETS-SHEET 1.

PATENTED AUG. 7, 1906.

` W. EULLARE. EEED EOE PRINTING MACHINES,

APPLICATION` FILED JULY 14, 1903,

2 SHEETS-SHEET 2.

A neno/L WILLIAM FULLARD,' OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TOUNITED PRINTING MACHINERY CO., OFl BOSTON, MASSACHUSETTS,

CORPORATION OF MAINE.

FEED Fon PRINTING-MACHINES.

Specification of Letters Patent.

Patented Aug. 7, 1906.

Application led July 14,1903. Serial No. 165,487.

. To all whom it may concern.-

Ass

Be it known that I, WILLIAM FULLARD, a, citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented new and useful Improvements in Feeds forPrinting-Machines, of which the following is as'peciica-y tion.

My invention relates to printing-presses; and it consists of anautomatic sheet-feed by which sheets of paper may be successively fed toa press.

It also consists ofk means for making a dwell in the movement of such,sheets while over the platen.

It further consists of novel features of/ construction, all as will behereinafter fully set forth. v

Figure 1 represents a side elevation, partly in section,l of a pressprovided with'my feed device. Figs. 2 and 3 represent, respectively, aplan and a vertical section of a portion of a chain. Fi 4 represents invertical section a portion o my device. Fig. 5 represents a rearelevation of the same. Fig. 6 represents a portionA of the chain,showing a modification. Fig. 7 represents an enlarged detail of aportion shown'in Fig.- 6. Fig. 8 represents an enlarged detail of aroll-actuating device.

Similar numerals of reference indicate corresponding parts in thefigures.

Referring to the drawings, 1 designates a hopper containingy sheets ofpa er 2, resting on idler-lrolls 3. A plurality of liooks 4, hav-v ingfingers 5, are secured to a shaft 6, reciprocable by means of a crank 7and rod 8, actuated to any suitable moving part of the press. Adjacentthe rear lower edge of the hopper 1 is a 'hollow roll` 9, mounted ony ashaft 10, which is eccentrically mounted, on which is a gear-wheel 11,meshing witha like wheel 12 on a shaft 13, which carries a roll 14.

A sprocket-chain 15 extends from a suitable sprocket-wheel 16 on themain shaft 17 of the press to a sprocket-wheel 11, mounted at the end ofthe roll 9. The shaft'lO of the roll 9 is eccentrically mounted onabearing 10a.

On a lug 18, proj ectingfrom the bearing 10%, is ivoted an arm 19,having a slot 20, through w ich passes the shaft 13, said arm beingadapted to rock the ecccentric mounting of the shaft 10` Withoutdisplacing the'teeth of the gear of the two rolls. A friction-roller 21,mounted'on the arm 19, rides on a cam 22 on the shaft 13. The rod or arm8 is also pivoted on the lug 18 and has a slot 24 engaging with thecrank 7 on the shaft 6 and operative against the spring 25, secured tothe hooks. i v

Mounted on the roll 9 are ppers 26, normally drawn toward the rolInbysprings 27 and thrownout by a caml 28, which is carried'- by aneccentric which is oscillated by the reciprocation of the arm 19, sothat the cam 28 is also reciprocated in order to be brou ht at theproper time in suitable contact wit said grippers in order to properlyactuate the same. Shown as Within the frame 29 of the press is anair-pump 30, connected by a tube 31 with the interior of the roll 9,from which interior extend radial apertures 32 to the periphery of theroll. Suitable recesses 33 34 in the rolls 9 and 14prevent theirinterference with the hooks 4. Guides 35 36, adjacent the rolls 9 and14, lead toA the upper face ofv an endless apron or conveyer.37,-

mounted on idle spur-wheels38 39. The teeth of said spur-wheels engagein a, sprocketchain 40, by which the apron Y37 is carried. At twoopposite oints in the chain 40 the links are doubled 1n length byconnecting the bars 41 by short rivets 42 instead of the regularcross-pins 43. Engaging with the lower side of the chain 40 is aymutilated; gear wheel 44, having a special tooth 45, shown as mounted onthe main shaft 17.

46 represents the inclinedplaten of the press, which is situated betweenthe upper and lower portions of the endless a ron or conveyer 37, theupper portion of t e conveyer passing directly over the up er surface ofthe platen and coacting with wihich is the reciprocating bed 47,operated b'y a suitable4 crank, and to which bed is attached a dog 48,adapted to engage with the doubled'links of the chain 40. It will benoticed that the dog by entering the opening in the double links isinterposable in the path of movement of the chain, and as it is necessachain in suitable or normal osition the said dog must engage with said cain Without deflecting the same from its normal ath.

The inking-rolls49 require no description..

to holdl the` IDO ' sheet of latter is carried between v 19 on'thebearing 10a, so that the ends of the suction-tubes 432 'engage with thelower-most pile of paper 2 in the hopper 1, the

hooks 4 being simultaneously withdrawn and the grippers 26 raised by thecams 28, all asl shown in Fig. 1. Fig. 4 shows the return of the hooks4, so that the iingersv 5 act to suport the body -of sheets. 2 and.permit the fhrther movement of the lower sheet, which the rolls 9 and 14and downward to the apron 37, over which it is slid until checked by thestop 54, which has reached a position for that purpose, of Fig. 1` orenga ged bythe grippers A50 of Fig. 6.

The rotation of the mutilated gear 44 is timed so that when the sheet isin proper polsition with respect to the stop 54 its last tooth leavesthe chain 4() as or before the bed 47 of the press descends, the dog 48engaging in the doubled link of the chain 40, thus securing the registerof the sheet. After the impression is made' the'bed47 rises, disengagingthe dog 48. The rotation of the shaft carrying with it the gear 44brings the tooth 45 of the gear 44 in position to engage the oppositedoubled link of the chain at the 'proper t me, and the chain is givenanother f advancement, whereby the imprinted sheet is-deposited in anysuitable yreceptacle (not shown) at the front of the press.

- It Wil-l be observed that the operation of the feed and of the pressis continuous and that the motion of the paper is positive andprogressive-fi. e., in an advancing direction l clination of the rearwalls of respect to its bottom the only. It will be noted that by reasonofthe inthe hopper with Weight of the superosed sheets does not restequally on the ower sheet, the forward portion of the sheet carryingless of such weight. When the hopper contains a -large number of sheets,the advantage of this rearward inclination of the hopper with respecttoits bottom is very apparent in the facility with which the lower sheetmay be detached from the others.

It Will be evident that various changes may be made by those skilled inthe art which will come within the scope of my invention, and I do not,therefore, desire to be limited to the exact construction herein shownand described.

.Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, isy 1. printing-press comprising a platen, a

bed, an intermittently-actuated ,carrierapron operative to carry-thesheetsover said platen and meansinterposable in the n ormal path of saidapron for positively holding it during impression without deflecting itfrom such normal path.

2. A printing-press comprising a platen, a bed, anintermittentlyactuated carrierapron operative to carry the sheetsoversaid platen and means movable in unison with saidr bed for positivelyholding sald apr'on durin impression.

3. i prmting-press comprising a platen', a bed, va carrier-apronoperative to carrythe sheets over -said platen', a chain operativelysecured to said apron and means engageable with said chain and-moved inunison with said bed for positively holding said apron duringimpression.

` 4. A printing-press comprising a platen, a bed, means for supporting aplurality lof sheets, van intermittentlyactuated apron, means forsuccessively depositing suchsheets on said apron and means interposablein the normal path of said apron for positively holding it duringimpression without deiiecting it from such normal path.

5. A pI'inting-press comprising aplaten, a bed, means for supporting aplurality of sheets, a carrier-apron, means for successivel de ositinersuch sheetson said a ron,

means for intermittentlymoving said apron so as to bring such sheets'over said platen and means connected with said bed for positivelyholding said apron during impression.

6. A printing-press comprising a platen, a bed, means for supporting aplurality of sheets, a carrier-apron, means for successively depositingsuch sheets on said apron, a mutilated gear-wheel, a chain on said wheeloperating to intermittently advance said apron and means engageable withsaid chain for positively holding said apron during impression.

7. In an automatic sheet-feed, a hollow feed-roll, suction-tubes in saidroll, grippers on said roll, an eccentrically-mounted shaft onwhich'said roll is rotated, and means for moving said shaft in adirection substantially opposite to its rotation, whereby the movementof said tubes and said grippers is retarded during their engagement withthe sheet.

8. In an feed-roll, suction-tubes in said roll, grippers on saidroll, aneccentrically-mounted s aft on which said roll is rotated, a secondfeedroll geared to said first-named feed-roll and means connected withsaid second rollfor rocking said eccentric mounting without displacingthe teeth on said-gear.

automatic sheet-feed, a hollovr IOO IIS

9. In aprinting-press, a platen, a bed, a

sheet-carrier apron, a s rocket-chain for ac tuating said apron, a linin said chain differentiated from a plurality of the remaining linksand. a gear-Wheel engagingfwithv said chain and havlng a dierentiatedtooth adapted to engage with said dierentiated link.

10. In a printing-press, a platen, a bed, a Sheet-carrier apron, asrocket-chain for actuating said apron, a ink in said chain oi largersizethan a plurality of the remainin links and a gear-Wheel en aging withsai Vchain and having a tooth o larger size than the remaining teeth forengaging with said larger link..

` 11. In a printing-press, a platen, a bed, a sheet-carrier apron, asprocket-chain for aetuating 'saiti apron and having links-at oppo-WILLIAM FULLARD.

Witnesses:

WILLIAM E. DOWN, ANNA BALAGUER,

